LZMA_IN_REQUIRED
uint8_t buf[3 * LZMA_IN_REQUIRED];
tmp = 2 * LZMA_IN_REQUIRED - s->temp.size;
} else if (s->temp.size + tmp < LZMA_IN_REQUIRED) {
s->rc.in_limit = s->temp.size + tmp - LZMA_IN_REQUIRED;
if (in_avail >= LZMA_IN_REQUIRED) {
if (in_avail >= s->lzma2.compressed + LZMA_IN_REQUIRED)
s->rc.in_limit = b->in_size - LZMA_IN_REQUIRED;
if (in_avail < LZMA_IN_REQUIRED) {